Tank.



No. 726,550. PATENTED APR. 28, 1903.

G.. H. LLOYD.

TANK.

APPLICATION FILED AUG. 15| 1902. N0 MODEL. 2 SHEETS-SHEET 1.

No. 726,550. PATENTED APR. 28, 1903.

G. H. LLOYD.

TANK.

APPLIGATION FILED AUG. 15. 1902.

No MODEL. 2 SHEETS-SHEET z.

NiTED STATES ATENE Erice.

GEORGE HERBERT LLOYD, OF BIRMINGHAM, ENGLAND.

TANK.

SPECIFICATION forming part of Letters Patent No. 726,550, dated April 28, 1903. Application tiled August l5, 1902. Serial No. 119,813. (No model.)

To all whom, it may concern:

Be it known that I, GEORGE HERBERT LLOYD, a subject ofthe King'of Great Britain and Ireland, residing at Atlas Works, Spring I-Iill, Birmingham, England, have invented certain new` and useful Improvements in Tanks, (for which I have made application for Letters Patent in Great Britain, No. 22,900, dated November 13, 1901,) of which the following is a specification. y

My invention relates to improvements in tanks or other vesselscom posed of a plurality of sheet-metal sections or plates adapted to be assembled and bolted or riveted together.

The object of the invention is to provide a construction whereby with a minimum number of shapes of plates or sections tanks or vessels of a maximum number of sizes may be readily built.

The invention is illustrated in the accompanying drawings, in Which- Figure l is a bottom plan view of a tank. l

Fig. 2 is an end view of the same. Fig. 3 is a plan view of one of the individual plates used in forming the bottom of the tank such as shown in Fig. l or the sides Where the tank is more than one plate or section high. Figs. 4 and 5 are similar views of sections or plates flanged on three sides and on two sides, respectively, and used in forming the sides and corners of the tank shown in Fig. l. Fig. 6 is a sectional View of the plate shown in Fig. 4. Referring more in detail to the figures, it will be seen that I use in constructing my tanks plates of three different shapes.

Referring first to the form shown in Figs. l and 2, the three forms of plates or sections are clearly shown in detail in Figs. 3, 4, and 5 and are lettered ct, b, and c, respectively.

Each plate or section a is provided with a` iiange d on each of its four sides, the flanges extending at right angles to the face of the plate. The plate is square, so that its four flanges are equaliin length. Each plate bis flanged on three sides in a similar manner; but instead of being square it is extended slightly on its unflangedfside e, the amount of extension or elongation being equal to the width of the flanges and being indicated by the double-headed arrow f, extending between the edge e and the dotted line o. The third section or plate c is fianged on two sides s s only, and this plate is square also; but the length ot' each of its sides is equal to the length of the longer sides ot' the plate or section o. This leaves two unflanged edgesj and 7a, corresponding to the edges e of the plates b. The edges 67', and 7a are suitably perforated for the reception of rivets or bolts, as also are the flanges d, g, and s. In assembling a plurality of these individual plates or sections to form a tank or vessel, as indicated in Figs. l and 2, a plurality of the sections ct are placed with their anged edges in contact, the number depending on the size ot' the tank, and the abutting flanges are then riveted together. Acorrespondingnumberof the plates or sections b are then placed on each side with their lower unflanged edges e overlapping thefianged edges of the plates a, to Which they are securely bolted or riveted, and the abutting flanges g of the adjoining plates b are likewise bolted or riveted together. Then the plates c are applied at the end corners, as indicated in Fig. l, one of the uniianged edges of each plate or section overlapping the flange of the corresponding bottom section a, as indicated atj, Fig. 2, while the other uniianged edge overlaps the side ange g of the adjoining side plate b. If the tank is to be only two plates or sections wide and one high, then two plates c will' constitute the end; but if it is to be wider then one or more plates or sections b will be interposed between plates c, as indicated in Figs. l and 2.

I find in the manufacture of plates such as indicated in Figs. 4 and 5 there is a tendency for the unflanged edges to draw in and a further tendency for the flanges near the unlanged edges to set at an obtuse angleto the plate, as shown in Fig. 6, instead of at a right angle. By the modified form of .platejust described this distortion of the plate is prevented and a square iiange remains at ninety degrees to the plate.

Having thus described my invention, what I claim is l A tank composed of a series of square metal plates, a, having right-angular iianges on all four edges, a second series of square plates o TOO having right-angular flanges on three edges and the fourth edge extending the Width of said flanges, and a third series of square plates c having two adjoining edges provided with right-angular flanges and the other two edges ext-ending for a distance equal to the width of the flanges, substantially as described.

In witness whereof I have hereunto set my hand in presence of two Witnesses.

GEORGE HERBERT LLOYD.

Witnesses:

JAMES MAGUIRE, FRED SMITH. 

